<template>
  <div>
      <Breadcard name1="权限管理" name2="角色列表" />
      <el-card>
          <el-row>
              <el-col>
                  <el-button type="primary" @click="addDialogVisible=true">添加角色</el-button>
              </el-col>
          </el-row>
          <el-table :data="RolesList" border stripe>
              <el-table-column type="expand">
                  <template slot-scope="scope">
                      <el-row :class="['bdbottom',i1 === 0 ? 'bdtop' : '','vcenter']" v-for="(item1,i1) in scope.row.children" :key="item1.id">
                          <el-col :span="5">
                              <el-tag closable @close="removeById(scope.row,item1.id)">{{item1.authName}}</el-tag>
                              <i class="el-icon-caret-right"></i>
                          </el-col>
                          <el-col :span="19">
                              <el-row :class="[i2 === 0 ? '' : 'bdtop','vcenter'] " v-for="(item2,i2) in item1.children" :key="item2.id">
                                  <el-col :span="6">
                                      <el-tag closable @close="removeById(scope.row,item2.id)" type="success">{{item2.authName}}</el-tag>
                                      <i class="el-icon-caret-right"></i>
                                  </el-col>
                                  <el-col :span="18">
                                      <el-tag closable @close="removeById(scope.row,item3.id)" type="warning" v-for="(item3,i3) in item2.children" :key="item3.id">{{item3.authName}}</el-tag>
                                      <i class="el-icon-caret-right"></i>
                                  </el-col>
                              </el-row>
                          </el-col>
                      </el-row>
                      <el-row></el-row>
                  </template>
              </el-table-column>
              <el-table-column type="index"></el-table-column>
              <el-table-column label="角色名称" prop="roleName"></el-table-column>
              <el-table-column label="角色描述" prop="roleDesc"></el-table-column>
              <el-table-column label="操作" width="300px">
                  <template slot-scope="scope">
                      <el-button size="mini" type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row.id)">编辑</el-button>
                      <el-button size="mini" type="danger" icon="el-icon-delete" @click="delRole(scope.row.id)">删除</el-button>
                      <el-button size="mini" type="warning" icon="el-icon-search" @click="showRoleDialog(scope.row)">分配权限</el-button>
                  </template>
              </el-table-column>
          </el-table>
      </el-card>
      <el-dialog
          title="分配权限"
          @close="clearDialog"
          :visible.sync="roleDialogVisible"
          width="50%">
          <!--权限树-->
          <el-tree ref="treeRef" 
          :default-checked-keys="defaultKeys" 
          :data="rightsList" 
          :props="treeProps" 
          show-checkbox node-key="id">
          </el-tree>
          <span slot="footer" class="dialog-footer">
            <el-button @click="roleDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="allowRights">确 定</el-button>
          </span>
        </el-dialog>
        <el-dialog
            title="编辑角色"
            :visible.sync="editDialogVisible"
            width="50%">
            <el-form :model="editRolesForm" status-icon label-width="70px" ref="editRoleformRef">
                <el-form-item label="角色名称" prop="roleName">
                    <el-input v-model="editRolesForm.roleName"></el-input>
                </el-form-item>
                <el-form-item label="角色描述" prop="roleDesc">
                    <el-input v-model="editRolesForm.roleDesc"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editFormInfo">确 定</el-button>
            </span>
            </el-dialog>
            <!-- 添加角色对话框 -->
            <el-dialog title="添加角色" :visible.sync="addDialogVisible" @close="addDislogClosed">
                <el-form :model="addRolesForm" ref="addRolesForm" label-width="70px">
                    <el-form-item label="角色名称" prop="roleName">
                    <el-input v-model="addRolesForm.roleName"></el-input>
                    </el-form-item>
                    <el-form-item label="角色描述" prop="roleDesc">
                    <el-input v-model="addRolesForm.roleDesc"></el-input>
                    </el-form-item>
                </el-form>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="addDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="addRolesUser">确 定</el-button>
                </span>
            </el-dialog>
  </div>
</template>

<script>
import Breadcard from '../../components/Breadcard/Breadcard.vue'
export default {
    components:{
        Breadcard
    },
    data () {
        return {
            //所有角色列表数据
            RolesList:[],
            roleDialogVisible:false,
            rightsList:[],
            treeProps:{
                label:'authName',
                children:'children'
            },
            //默认勾选的权限的id
            defaultKeys:[],
            //当前即将要分配权限的角色id
            roleId:[],
            editRolesForm:{},
            //控制编辑对话框显隐
            editDialogVisible : false,
            //控制添加角色对话框显隐
            addDialogVisible:false,
            //要添加角色的数据
            addRolesForm:{
                roleName:'',
                roleDesc:''
            }
        }
    },
    created(){
        this.getRolesList()
    },
    methods:{
        async getRolesList(){
            const {data:res} = await this.$http.get('roles')
            if(res.meta.status !== 200){
                return this.$message.error('获取角色列表失败')
            }
            this.RolesList = res.data
            this.$message.success('获取角色列表成功')
        },
        async removeById(roles,rightId){
            const result = await this.$confirm('此操作将永久删除该文件，是否继续？','提示',{
                confirmButtonText:'确定',
                cancleButtonText:'取消',
                type:'warning'
            }).catch(err => err)
            if(result !== 'confirm'){
                return this.$message.error('取消了删除')
            }
            const {data:res} = await this.$http.delete(`roles/${roles.id}/rights/${rightId}`)
            if(res.meta.status !== 200){
                return this.$message.error('删除失败')
            }
            roles.children = res.data
            this.$message.success('删除成功')
        },
        async showRoleDialog(role){
            this.roleId = role.id
            const {data :res} = await this.$http.get('rights/tree')
            if(res.meta.status !== 200){
                return this.$message.error('获取权限数据失败')
            }
            this.rightsList = res.data
            this.getdefaultNode(role,this.defaultKeys)
            this.roleDialogVisible = true
            
        },
        //利用递归获取所有三级权限的id
        getdefaultNode(node,arry){
            if(!node.children){
                return arry.push(node.id)
            }
            node.children.forEach(item => {
                this.getdefaultNode(item,arry)
            });
        },
        clearDialog(){
            this.defaultKeys = []
        },
        async allowRights(){
            const keys = [
                ...this.$refs.treeRef.getCheckedKeys(),
                ...this.$refs.treeRef.getHalfCheckedKeys()
            ]
            const idStr = keys.join(',')
            const {data:res} = await this.$http.post(`roles/${this.roleId}/rights`,{rids:idStr})
            if(res.meta.status !== 200){
                return this.$message.error('分配权限失败')
            }
            this.$message.success('分配权限成功')
            this.getRolesList()
            this.roleDialogVisible = false
        },
        //编辑按钮事件
        async showEditDialog(id) {
            const { data: res } = await this.$http.get('roles/' + id)
            if (res.meta.status !== 200) {
                return this.$message.error('查询角色失败!')
            }
            this.editRolesForm = res.data
            console.log(this.editRolesForm)
            this.editDialogVisible = true
        },
        //编辑对话框确认按钮事件
        editFormInfo() {
            this.$refs.editRoleformRef.validate(valid => {
                if (!valid) return Error()
                this.$http
                .put('roles/' + this.editRolesForm.roleId, {
                    roleName: this.editRolesForm.roleName,
                    roleDesc: this.editRolesForm.roleDesc
                })
                .then(res => {
                    if (res.data.meta.status !== 200) {
                    return this.$message.error('修改角色失败!')
                    }
                    this.$message.success('修改角色成功!')
                    this.getRolesList()
                })
                this.editDialogVisible = false
            })
        },
        async delRole(id){
            const result = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err)
            if(result !== 'confirm'){
                return this.$message.error('已经取消了删除')
            }
            this.$http.delete('roles/' + id).then(({data:res}) => {
                if(res.meta.status !== 200){
                    return this.$message.error('删除角色失败')
                }
                this.$message.success('删除角色成功')
                this.getRolesList()
            })
        },
        // 添加角色
        addRolesUser() {
            this.$refs.addRolesForm.validate(async valid => {
                if (!valid) return
                const { data: res } = await this.$http.post('roles', this.addRolesForm)
                console.log(res)
                if (res.meta.status !== 201) {
                return this.$message.error('添加角色失败!')
                }
                this.$message.success('添加角色成功!')
                this.getRolesList()
                this.addDialogVisible = false
            })
            // console.log(this.addRolesForm)
        },
         // 清空添加角色对话框
        addDislogClosed() {
            this.$refs.addRolesForm.resetFields()
        },
    }
}
</script>

<style lang="less" scoped> 
.el-tag{
    margin: 7px;
}
.bdtop{
    border-top: 1px solid #eee;
}
.bdbottom{
    border-bottom: 1px solid #eee;
}
.vcenter{
    display: flex;
    align-items: center;
}
</style>